Add Changelog entry
diff --git a/ChangeLog b/ChangeLog
index 13de867..ff3055f 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,11 @@
 mbed TLS ChangeLog (Sorted per branch, date)
 
+= mbed TLS x.x.x branch released xxxx-xx-xx
+
+Features
+   * Exposed parts of the Elliptic Curve Point internal interface, to provide
+     interface for external hardware acceleration code.
+
 = mbed TLS 2.4.2 branch released 2017-03-08
 
 Security